Our Concord-based client in the industrial equipment and services sector is seeking a Senior Application Architect (10+ years) to lead enterprise-wide solution architecture using .NET / .NET Core, SQL Server, and Microsoft Azure.

Join a rapid-paced IT solutions architecture team shaping the standards, patterns, and long-term direction for enterprise web applications across a Microsoft technology stack.

This role combines enterprise architecture, technical leadership, and hands-on development across authentication, observability, CI/CD, security, and Azure application hosting.

The position supports large-scale cross-functional initiatives and serves as a key escalation point for architecture and complex technical decisions.

The environment emphasizes peer collaboration, practical adoption of standards, and ongoing hands-on contribution.

Contract, Concord, Hybrid, Working Hours: EST Must Haves 8+ years in software engineering with progressively senior architecture-level scope .NET / .NET Core (C#), ASP.NET Core, RESTful API design, and service-oriented architecture patterns Microsoft Azure including App Services, Azure Functions, API Management, Logic Apps, Key Vault, and Managed Identity SQL Server , T-SQL, Entity Framework, Dapper,



and stored-procedure-centric data access patterns Degree in Computer Science, Software Engineering, or equivalent experience Nice to Have Classic ASP legacy application support and maintenance Angular or similar SPA frameworks, Kendo UI, Bootstrap, HTML5/CSS3, Java

Script/Type

Script Application Insights and structured logging Daily use of AI coding tools including Claude, Git

Hub Copilot, or Codex Microsoft certifications: AZ-, AZ-, or AZ- Responsibilities Lead end-to-end solution architecture for large cross-functional initiatives Propose and refine architecture patterns for authentication, data access, observability, deployment, and secrets management Translate business strategy into target-state solutions, technology roadmaps, and transition architectures Review solution designs against OWASP Top 10, Zero Trust principles, and identity management standards Guide architecture and design decisions across developer and project teams Document architecture patterns, diagrams, and design decision records Prototype and validate architecture patterns and contribute code on selected initiatives

📌 Senior Application Architect (10+ years) required to lead enterprise-wide solution architecture using.NET /.NET Core, SQL Server, and Microsoft Azure. (Toronto)
🏢 S.i. Systems
📍 Toronto